{"product_id":"mrcool-signature-series-multi-position-air-handler-mcaeampef42c21aa","title":"MRCOOL Signature Series Multi-Position Air Handler MCAEAMPEF42C21AA","description":"\u003ch2\u003eMRCOOL Signature Series Multi-Position Air Handler MCAEAMPEF42C21AA\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSignature 42,000 BTU Split System Air Handler Multi-Position\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe MRCOOL® Signature Series 42k Multi-Position Air Handler is built to provide consistent, energy-efficient comfort in any climate. Designed for flexibility and performance, this unit works with R-454B refrigerant, a low-GWP alternative that helps reduce environmental impact without sacrificing power or reliability.\nIts multi-position design allows for installation in upflow, downflow, or horizontal configurations, making it ideal for a variety of home layouts, from new construction to tight retrofits. With its slim, space-saving profile, it fits easily into closets, attics, or crawl spaces while still delivering full-capacity heating and cooling when paired with a compatible condenser or heat pump.\nEngineered for durability, the air handler includes a galvanized steel cabinet, a high-efficiency ECM blower motor, and copper “A” coils with enhanced aluminum fins for superior heat transfer and humidity control. Thermal insulation inside the cabinet reduces energy loss and prevents condensation, contributing to quiet operation and lower energy bills.\nInstallation is fast and simple, helping to minimize labor time and disruption. An air filter rack allows for easy maintenance, while an optional electric heat kit is available for added heating performance in colder regions.\nSmart home compatibility comes standard, with support for most third-party thermostats so you can manage comfort on your terms; no proprietary systems required.\nProtected by a 10-year limited parts warranty, the MRCOOL® Signature Series 42k Multi-Position Air Handler offers long-lasting performance, space-saving design, and year-round efficiency for today’s comfort-conscious homeowner.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTonnage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e208\/230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefrigerant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-454B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnergy Star\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"MRCOOL","offers":[{"title":"Default Title","offer_id":51308760138013,"sku":"MCAEAMPEF42C21AA","price":1321.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0860\/2704\/3101\/files\/mc-ss-ap-multi-position-ah-02_bklaxs_fbce77a4-06a8-449d-ad0a-3c4a7802252f.png?v=1779214527","url":"https:\/\/www.morrheat.com\/products\/mrcool-signature-series-multi-position-air-handler-mcaeampef42c21aa","provider":"MorrHeat Energy Solutions","version":"1.0","type":"link"}